{"product_id":"value-collection-siw8xx2000-050bx-m20-lock-washer","title":"Value Collection SIW8XX2000-050BX M20 Lock Washer","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION SIW8XX2000-050BX is a stainless steel internal tooth lock washer sized for M20 screws. It features a 21mm inside diameter and a 33mm outside diameter with a thickness of 1.4mm. The serrated internal teeth grip the mating surface and fastener head to resist loosening caused by vibration or torque relaxation. Manufactured from Grade 316 Austenitic Stainless Steel (A4), this washer provides strong corrosion resistance in wet, chemical, and marine environments. It ships uncoated and conforms to DIN 6797 and DIN 6798 standards. Plumbers, pipefitters, marine electricians, and mechanical contractors install these washers where fastener retention in corrosive conditions is required.\u003c\/p\u003e\n\u003cp\u003eThis internal tooth lock washer is suited for use in residential and commercial mechanical assemblies, marine hardware installations, and process piping connections where M20 fasteners are specified. The Grade 316 stainless construction makes it appropriate for saltwater exposure, chemical processing environments, and exterior applications subject to moisture and oxidation. It is sold in a minimum order quantity of 5 pieces, with each package containing 1 washer.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 316 Austenitic Stainless Steel (A4) construction for superior corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eInternal serrated teeth grip fastener and mating surface to prevent loosening under vibration\u003c\/li\u003e\n  \u003cli\u003e21mm inside diameter — designed for M20 screw applications\u003c\/li\u003e\n  \u003cli\u003e33mm outside diameter provides broad bearing surface distribution\u003c\/li\u003e\n  \u003cli\u003e1.4mm thickness meets DIN 6797 and DIN 6798 dimensional standards\u003c\/li\u003e\n  \u003cli\u003eUncoated finish — no surface treatment to degrade or flake in service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or service component for assemblies using M20 fasteners that require an internal tooth lock washer per DIN 6797 or DIN 6798 specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified mechanical, plumbing, or electrical trades depending on the application. Shut down and de-energize or depressurize the assembly before disassembling fastened joints. Place the washer between the fastener head and the mating surface with the teeth facing the fastener head for proper grip. Do not reuse lock washers that have been fully compressed or show deformation from prior service.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 316 Austenitic A4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTooth Type\u003c\/strong\u003e: Internal Tooth (Serrated)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 21mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 33mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 1.4mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Thickness\u003c\/strong\u003e: 1.4mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: DIN 6797, DIN 6798\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScrew Size\u003c\/strong\u003e: M20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMilitary Specification\u003c\/strong\u003e: Does Not Meet Military Specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SIW8XX2000-050BX\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51704196661554,"sku":"SIW8XX2000-050BX","price":1122.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9a80a204642cbf9c9a6aab24242b1ddc_c4481280-886d-4805-b06a-73f51ff22bbd.jpg?v=1788421176","url":"https:\/\/voomisupply.com\/products\/value-collection-siw8xx2000-050bx-m20-lock-washer","provider":"Voomi Supply","version":"1.0","type":"link"}